Pneumatic tire.



M A. BEES.

PNEUMATIG TIRE.

APPLICATION FILED 1'z11.1,1911.

1,040,647. Patented m1121191?,4

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M. A. DEES.

APNBUIMATIG TIRE. APPLIUATION num mm1. 1 911.'

1,040,647. Patented oct. s, 1912.

UNTTED sTATns PATENT carton.,

MARK A. DEES, 0F PASCAGOULA, MISSISSIPPI, ASSIG-NOR TO AMERICAN TIRE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION 0F MISSOURI.

PNEUMATIC TIRE.

Specification of Letters Patent.

Patented Oct. 8,1912.

Application led February 1, 1911. Serial No. 605,884.

To all whom 'it may concern:

Be .it known that I, Mann npDr-ins, a citizen of the United States of America, residing at Pascagoula, in the county of Jackson and State of Mississippi, have invented certain new and useful Improvements i1: Pneumatic Tires, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention pertains to pneumatic tires and particularly to jackets for the protection of the inner tubes of such tires and the prevention of the expansion of such. inner tubes through weakened or fractured portions of the tire casings, with the consequence of occurrence of what are known as blowouts of the inner tubes.

Figure I is a longitudinal section through a portion of a pneumatic tire containing a fracture `or injury andtmc of my jackets Within the tire. Fig. II is a View of the jacket looking at its edge ortions, showing the fastening devices by W iich the edges of the jacket are held from separation. Fig. III is an enlarged cross section of thetire shown in Fig. I. Fig. IV is a perspective view of one end of the jacket with its edges separated, and without the fastening devices present therein. Fig. V is a pej'spective View of one of the fastening devices. Fig. VI is )ar side elevation of a continuous jacket made in accordance with my improvement.

-In theaccompanying drawings z-A designates the outer casing of my tire which may'be similar in allrespects to any pneumatic tireV casing,l inasmuch as no invention per seis herein claimed for such casing.'

B is the inner tube within the' outer easing and between which and the outer casing my jacket is utilized.

1 designatesmy jacket,- which is preferably made of a plurality of layers of fabric that may be, and preferably are, rubberized. Thisjackct, as shown in Fi rs. I to IV, inclusive, is only intended to e utilized in a pneumatic t1re for the protection of the inner tube at a point where the outer casing ofthe tire has been injured, such as'that indicated ata.. The jacket is in the form of a sleeve having longitudinal edges that may be separated from each other to permit of the application of the jacket around an inner tube of a pneumatic tire, and in the jacket adjacent to one of its longitudinal 'by the jacket.

edges are non-circular perforations 2; while opposite these non-circular juerforations and adjacent to the other longitudinal edge of the jacket are elongated tapered apertures 3 which extend transversely of the jacket and are pointed inwardly.

4 designates connecting or fastening devices by which the longitudinal edges of the jacket l are held in close `asstunblage and from separation from each other, when the jacket is in 'service around the inner tube of a pneumatic tire. Each of these cbnnecting or fastening devices 4 is provided at its ends with segmental heads 5 and the rods are non-circular in cross section and bowed s0 that each connecting or fastening device 4 has two head carrying portions that are arranged al' angles relative to each other.

In prelmring my jacket for use in a pneumatic tire, the headed connecting or fastening devices 4 are mounted in the jacket'A at its edge containing the non-circular perforations Q, and inasmuch as these non-circular perfor-ations through which the connecting or fastening devices -t are passed are smaller' than t-hc heads thereof, said heads will remain in position until such time as the edges of the jacket are to he held in assemblage around an inner tube that is to be protected IVhen the jacket is to be putinto service, it is placed around the inner tube andthe heads of the connecting or fastening devices 'I that are to be connected tothe jacket at its edge opposite'thutin which vthe connecting or fastening'devlces were originally mounted are passed through the elongated tapered apertures 3, while such heads are turned at right angles to the peripheral face of the jacket, afterwvhich the4 connecting or 'fastening devices are turned to 'position their headsI parallel with the peripheral face of the jacket, thereby preventing the repassage of the heads through the elongated tapered apertures The connecting or fastening devices are, therefore, retained :in the jacket to hold its longitudinaledgcs in close assemblage and prevent distention of the jacket. It. will be apparent that thc connecting or fastening devices may be disposed as frequently as desired throughout the length of the jacket in order that the jacket may not" be capable of expanding to an objectionable degree between `the points at wli'ch the' connecting or fastening devices are located` provi ded therefor.

6 designates a protector iiap secured to the jacket l adjacent to one of its longitudinal edges and adapted to extend a cross the junction of the connected .longitudinal edges of the jacket to prevent in j urjto the inner tube B such as might Aoccur by the inner tube eX- panding to such junction and becoming pinched therein. The protector ilapI 6 has another important otiice in the present improvement. The connecting rods l are bowed, as shown, tow-ard the iap and the heads of said rods bear against the inner walls of the beads of the outer casing A. This being true, it will be appreciated that the pressure of the inner tubevof the tire is directed against the protector flap and transmitted by the latter to the bows of the connecting rods, causing the heads of the rods to prcss laterally against the outer casing beads to hold them irrnly in the seats The flap not only trans` mits the inner tube pressure for the purpose stated, but distributes such pressure evenly to all of the connecting rods in a manner that could not be accomplished if the inner tube pressed dire: tly against the rods.

I have shown in Fig. VI a continuous jacket 1a Within which the inner tube of a vtire may be housed instead of such tube being only artially housed, as it is in the use of the jac iet l. The separable edges of this continuous jacket are held in assemblage by Loader.'

rthe saine form of connecting or fastening devices as are used in the jacket first described.

ll clairn':

l. Ajacket of the character described hav` ing longitudinal edges7 and double headed to one of its edges Within which 'the rods are closely itted, and elongated inwardly ta` pered apertures adjacent its other edge through which the heads of the connecting devices may be passed after-the latter are arranged in t-he jacket adjacent to the first mentioned edge.

Q. In a pneumatic tire, an outer casing lprovided with beads, an inner tube within said outer casing, a jacket between said outer casing and inner tube, the said jacket hav Y ing separable edges, headed connecting rods uniting the separable edges of said jacket and bearing against the beads of' said outer casing,and a flap carried by said jacket interposed betweensaid inner tube and said connecting rods.

MARK A. DEES. ln the presence ot- EDNA B. LIN'N, eL-J. MCCAULEY. 

